WWI ORIGINAL U.S. UNIT #15 INSIGNIA PIN

WWI ORIGINAL U.S. UNIT #15 INSIGNIA PIN.
MADE OF COPPER.
STRAIGHT PIN BACKS WITH "C" HOOK CATCH.
VERY GOOD CONDITION.
IF YOU HAVE ANY QUESTIONS, PLEASE LET ME KNOW AND I WILL GET BACK TO YOU ASAP.
THANK YOU FOR LOOKING AND HAVE A GREAT DAY